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US 2018/0022101 A1Published application
Photopolymerizable inkjet ink
AssigneeRicoh Company, Ltd.
InventorTakao HIRAOKA
Life of this patent
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Abstract
A polymerizable inkjet ink, containing: photopolymerizable monomers containing a compound (A) that is negative for skin sensitization, a compound (B) that is negative for skin sensitization, and a photoradical polymerization initiator where the compound (A) is a (meth)acrylate compound, the photoradical polymerization initiator is 2,4-diethyl thioxanthone, and the ink has a viscosity of 2 to 150 mPa·s at a temperature of 25° C. and a viscosity of 2 to 20 mPa·s at 60° C.
Claims3
A polymerizable inkjet ink, comprising:
- photopolymerizable monomers comprising a compound (A) that is negative for skin sensitization, a compound (B) that is negative for skin sensitization, and a photoradical polymerization initiator
- wherein
- the compound (A) is a (meth)acrylate compound,
- the photoradical polymerization initiator is 2,4-diethyl thioxanthone, and
- the ink has a viscosity of from 2 to 150 mPa·s at a temperature of 25° C. and a viscosity of from 2 to 20 mPa·s at 60° C.
2 more elements
Dependencies are inferred from the claim text.